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probability

A) A coin is tossed 20 times. Find probability of getting at least 14 heads. B) A die is tossed 20 times. Find probability of getting a "1" two times. C) Three dice are tossed. Find probability that a four shows on exactly two of the dice.

Subject:

Statistics

Topic:

All Topics

Posting ID:

2814

OTA ID:

102799

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Testing for independence

I am writing problem out and attaching the data file in EXCEL needed to solve the problem. Suppose that a survey of 100 individuals who live in the western region of New York was conducted. The party affiliation (Democrat, Independent, Republican) of each individual surveyed was recorded, as well as their response to the following three questions: Questions of Study 1. Should legislative pay be cut for every day the state budget is late? Yes or NO 2. Should there be more restrictions on lobbyists? Yes or NO 3. Should there be term limits requiring legislators serve a fixed number of years? Yes or NO The responses were coded using 1 for a yes and 2 for a NO response. The com... click for more

Subject:

Statistics

Topic:

All Topics

Posting ID:

2817

OTA ID:

102524

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present and justify hypotheses

I need to present and briefly justify four hypotheses involving relation between pairs of variables, using the same variable as dependent. The variables I would like to use are: Immigr (DV) Income, education, and age (IV) Can you help me with this problem? Thank you,

Subject:

Statistics

Topic:

All Topics

Posting ID:

2824

OTA ID:

102454

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Hypothesis testing

In order to estimate the differences between the average miles per galon of two differant models of automobiles, samples are taken and the following information is collected. Model A Model B sample size 50 55 sample mean 32 35 sample variamce 9 10 1. At the 95% confidence level develop an interval estimate for the difference between the average mile per gallon for the two models. 2 Is there conclusive evidence to indicate that one models gets better MPG? why

Subject:

Statistics

Topic:

All Topics

Posting ID:

2857

OTA ID:

102524

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Hypothesis testing

MNM Inc, has their stores located at three different locations. Random samples of the daily sales of the three stores (in $1,00) are shown below. Stores 1 store 2 store 3 9 10 6 8 11 7 7 10 8 8 13 11 at the 95% confidence level is there significant difference in the average sales of the stores?

Subject:

Statistics

Topic:

All Topics

Posting ID:

2859

OTA ID:

102454

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